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vops - virtual object persistency system (elib/vops) |
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- Status: |
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This library is pre-alpha, please see http://www.mrjoy.com/easyorm.shtml for similar more stable stuff. |
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- Features: |
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- Abstract database wrapper library for accessing/storing data in an object-oriented way. |
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- Modeled partly like Red Hat's Content and Collaboration Management Platform's data persistence part. |
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- Uses a subset of the PDL Language for declaring classes and mapping object-fields to columns in relational databases. |
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- Needs storage library (elib/storage) for handling the sql-related stuff, so this library is completely free of sql |
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and just cares for a "relational nature" of the underlying storage. |
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- Notes: |
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This library was written in 2001 when CCM ( http://ccm.redhat.com/ ) still was |
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ArsDigita ( http://developer.arsdigita.com/ ) , so the concepts used for storing data in CCM |
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may or may not have changed since then. |
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The PDL Language used in this context is neither "The Perl Data Language", the "Page Description Language", |
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the "Programming Definition Language", the "Project Description Language" nor the "Physical Design Language". |
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It is the "Persistence Definition Language", see "2.4.1. The PDL File" at |
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http://ccm.redhat.com/doc/core-platform/5.0/infrastructure/persistence/doc/data-objects-tutorial-beginning.html#data-objects-tutorial-beginning-pdl-object-type-file |
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There is already the "Persistency Definition Language", which seems to address the same things, |
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see http://www.cs.ubc.ca/~kdvolder/Workshops/ASE2002/DMP/papers/02matar.pdf . |
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- Files/Classes (MANIFEST): |
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vops/engine.php.inc |
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class DataStore |
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class ObjectFactory |
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class DSSession |
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class DSFilter |
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class DSSortOrder |
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vops/objects.php.inc |
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class DSAbstractObject |
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class DSDataObject extends DSAbstractObject |
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class DSDataCollection extends DSAbstractObject |
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vops/pdl/pdl_engine.php.inc |
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class PDLEngine |
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vops/pdl/pdl_model.php.inc |
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class PDLModel |
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class PDLModelObject |
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class PDLModelAttribute |
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class PDLModelAbstractDataOperation |
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class PDLModelDataOperation extends PDLModelAbstractDataOperation |
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class PDLModelEvent extends PDLModelAbstractDataOperation |
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vops/pdl/pdl_reader.php.inc |
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class PDLReader |
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vops/pdl/pdl_writer.php.inc |
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empty |
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- Class Diagram: |
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to be drawn (you might guess it in the meantime) |
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- Links (some of them are historical!): |
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ArsDigita Mission Statement, The Big Picture and various Documents: |
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http://eveander.com/arsdigita/misc/mission |
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http://eveander.com/arsdigita/doc/core-arch-guide/subcommunities |
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http://216.239.51.100/search?q=cache:LmbL_uHntz8C:6916.lcs.mit.edu/gallery/spring1999/photo-db.html+arsdigita+project+team+photo&hl=en&ie=UTF-8 |
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http://philip.greenspun.com/doc/ |
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http://eveander.com/arsdigita/asj/using-the-acs |
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ACS 3.x documentation: |
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The ArsDigita Community System (ACS) Documentation: http://eveander.com/arsdigita/doc/ |
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ACS Core Architecture Guide: http://eveander.com/arsdigita/doc/core-arch-guide/ |
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CCM/ArsDigita Documentation: |
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http://developer.arsdigita.com/doc/core-platform/5.0/infrastructure/persistence/doc/index.html |
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http://ccm.redhat.com/doc/core-platform/5.0/infrastructure/persistence/doc/introduction.html#persistence-overview |
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http://ccm.redhat.com/doc/core-platform/5.0/infrastructure/persistence/doc/persistence-data-objects.html |
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http://ccm.redhat.com/doc/core-platform/5.0/infrastructure/persistence/doc/data-objects-tutorial-beginning.html |
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http://ccm.redhat.com/doc/core-platform/5.0/infrastructure/persistence/doc/pdl-syntax.html |
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http://ccm.redhat.com/doc/core-platform/5.0/api/ |
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see: |
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- com.arsdigita.persistence |
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- com.arsdigita.persistence.metadata |
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- com.arsdigita.persistence.pdl |
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- com.arsdigita.persistence.sql |
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Red Hat CCM: |
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http://www.redhat.com/software/ccm/ |
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http://www.redhat.com/software/ccm/community/ |
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History of ArsDigita: |
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http://eveander.com/arsdigita-history |
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http://webseitz.fluxent.com/articles/GreenspunOnArsDigitaLawsuit |
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http://www.arsdigita.com/books/panda/ |
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-> Philip and Alex's Guide to Web Publishing |
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-> http://web.archive.org/web/20020124065041/www.arsdigita.com/books/panda/ |
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http://web.archive.org/web/20011127081907/www.arsdigita.com/books/panda/money |
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http://www.waxy.org/random/arsdigita/ |
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Archives of ArsDigita: |
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http://eveander.com/arsdigita/ |
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http://jamesthornton.com/acs/ |
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Related Sites: People, Organizations, Projects and Companies in mixed order: |
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Philip Greenspun: http://philip.greenspun.com/ |
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Eve Andersson: http://eveander.com/ |
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Red Hat: http://redhat.com/ |
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OpenACS: http://openacs.org/ |
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ArsDigita University: http://www.aduni.org/ |
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MIT OpenCourseWare: http://ocw.mit.edu/ |
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James Thornton: http://jamesthornton.com/ |
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Savera: http://www.savera.com/about_savera/technical.htm#greenspun |
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Massachusetts Institute of Technology (MIT): http://mit.edu/ |
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Related Documents: |
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http://www.swiss.ai.mit.edu/~rfrankel/introadmin.html |
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http://www.swiss.ai.mit.edu/~rfrankel/communityadmin.html |
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6.916 - Software Engineering and Innovative Web Services |
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-> http://web.archive.org/web/20011214123725/http://6916.lcs.mit.edu/ |
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